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ruler
A ruler measures length.
Class 1 · Bangla Version · General science
Observe, compare and ask questions
Explore observe, compare and ask questions with an example and your own answers.
Original Kidemy foundation practice · Read the example, write your answers, then check. This starter is shared across class versions; it is not a complete board-specific lesson or course.
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Learn the idea
An observation says what you notice. Compare objects using the same feature and ask a question that you can explore safely.
Worked example
Two leaves can be compared by length. Put their stems at the same starting line before deciding which is longer.
- Read the example and explain which rule or evidence it uses.
- Try each task yourself, then compare the answer and its reason.
Your written practice
Show your working on paper and enter your answer here. If it does not match, compare the model and try again.
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yes
Matching starts makes the length comparison fairer.
Write in your own words. A guardian or teacher should review this response.
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The leaf has a pointed tip.
Check that the sentence describes an observable feature, not an unsupported claim.
Take it further
Apply the idea in a new situation and explain your method. Open writing needs a guardian or teacher to review it.
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3
Subtract six from nine.
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three spots
A spot count is observable; prettiest is a preference.
Write in your own words. A guardian or teacher should review this response.
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Which of these two pencils is longer?
Choose a safe observable feature and a question that can be checked.
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